JPH05270471A - Body frame of motorcycle - Google Patents

Body frame of motorcycle

Info

Publication number
JPH05270471A
JPH05270471A JP4067172A JP6717292A JPH05270471A JP H05270471 A JPH05270471 A JP H05270471A JP 4067172 A JP4067172 A JP 4067172A JP 6717292 A JP6717292 A JP 6717292A JP H05270471 A JPH05270471 A JP H05270471A
Authority
JP
Japan
Prior art keywords
body frame
bridge member
members
bridge
motorcycle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP4067172A
Other languages
Japanese (ja)
Other versions
JP3194288B2 (en
Inventor
Ryoichi Kinoshita
良一 木下
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzuki Motor Corp
Original Assignee
Suzuki Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzuki Motor Corp filed Critical Suzuki Motor Corp
Priority to JP06717292A priority Critical patent/JP3194288B2/en
Publication of JPH05270471A publication Critical patent/JPH05270471A/en
Application granted granted Critical
Publication of JP3194288B2 publication Critical patent/JP3194288B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K11/00—Motorcycles, engine-assisted cycles or motor scooters with one or two wheels
    • B62K11/02—Frames
    • B62K11/04—Frames characterised by the engine being between front and rear wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00—Cycle frames
    • B62K19/02—Cycle frames characterised by material or cross-section of frame members
    • B62K19/04—Cycle frames characterised by material or cross-section of frame members the material being wholly or mainly metallic, e.g. of high elasticity
    • B62K19/06—Cycle frames characterised by material or cross-section of frame members the material being wholly or mainly metallic, e.g. of high elasticity tubular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00—Cycle frames
    • B62K19/18—Joints between frame members
    • B62K19/20—Joints between frame members welded, soldered, or brazed

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Abstract

PURPOSE:To reduce the cost of a jig for body frame assembly as well as to facilitate the tacking operation of a bridge member at the time of body frame assembling by making the bridge member to be installed in space between a symmetrical pair of round pipes, constituting the body frame, installable even after the completion of assembling the body frame, CONSTITUTION:In a motorcycle body frame provided with two bridge members 6, 7 between a symmetrical pair of round pipes (for example, top tubes 3, 3), both the ends of these bridge members 6, 7 are butted to the round pipes 3 and 3 ranging between one side 3a and an axial line 3b of both these round pipes 3 and 3, and this butted part 14 is welded and locked to these round pipes 3 and 3.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、自動二輪車の車体フレ
ームに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body frame of a motorcycle.

【０００２】[0002]

【従来の技術】丸パイプ材によって構成された自動二輪
車の車体フレームには、図５（ａ）、（ｂ）に示すよう
に左右両側のパイプ材Ａ，Ａ間にブリッジ部材Ｂを架設
した構造が多く採られている。ブリッジ部材Ｂは、その
両端部の形状をパイプ材Ａ，Ａの曲面に合わせてカット
され、パイプ材Ａ，Ａの径方向全幅にわたってパイプ材
Ａ，Ａに突き当てられ、溶着される。2. Description of the Related Art A vehicle body frame made of a round pipe material has a structure in which a bridge member B is installed between the pipe materials A on the left and right sides as shown in FIGS. 5 (a) and 5 (b). Is often used. The bridge member B is cut such that the shapes of both ends thereof are matched with the curved surfaces of the pipe materials A and A, and is abutted and welded to the pipe materials A and A over the entire radial width of the pipe materials A and A.

【０００３】上記パイプ材Ａ，Ａは、車体フレームを構
成する左右一対のトップチューブやダウンチューブ、あ
るいはシートレールなどである。The above-mentioned pipe materials A, A are a pair of left and right top tubes, down tubes, seat rails or the like which constitute a vehicle body frame.

【０００４】[0004]

【発明が解決しようとする課題】ところで、自動二輪車
の車体フレームの組み立て手順は、先ず上記した左右一
対のトップチューブ、ダウンチューブ、シートレール等
の片側ずつをそれぞれ溶着してサイドコンプリートと呼
ばれる車体フレームの左右半身を個別に組み立て、次に
左右のサイドコンプリートを治具上で正確に対向させて
その間に数本の前記ブリッジ部材Ｂと、ヘッドパイプ等
の中間部材とを溶着し、左右のサイドコンプリートを一
体化させることによって車体フレームの完成となる。By the way, the procedure for assembling a vehicle body frame of a motorcycle is as follows. First, a pair of left and right top tubes, down tubes, seat rails, etc. are welded on one side respectively, and the body frame is called a side complete. The left and right halves are individually assembled, and then the left and right side completes are accurately opposed to each other on a jig, and several bridge members B and an intermediate member such as a head pipe are welded between them to form left and right side completes. The body frame is completed by integrating the above.

【０００５】しかしながら、左右のサイドコンプリート
を対向させる治具には、全てのブリッジ部材Ｂをサイド
コンプリート間に仮止めさせる構造が必要となるため、
治具が複雑化かつ大型化して非常にコストが嵩むととも
に、各ブリッジ部材Ｂをそれぞれずれることなく治具に
仮止めするのに多大な手数が掛かってしまう。However, a jig for facing the left and right side completes needs a structure for temporarily fixing all the bridge members B between the side completes.
The jig becomes complicated and large, and the cost becomes very high, and it takes a great deal of time to temporarily fix each bridge member B to the jig without displacement.

【０００６】このような治具のコストアップを回避し、
ブリッジ部材Ｂの仮止め作業を容易にするためには、全
てのブリッジ部材Ｂを治具上で同時に溶着するのではな
く、何本かのブリッジ部材Ｂを左右のサイドコンプリー
トが一体化した後に後付けするという手法を採るのが効
果的である。To avoid the cost increase of such a jig,
In order to facilitate the temporary fixing work of the bridge members B, not all the bridge members B are simultaneously welded on the jig, but some bridge members B are attached after the left and right side completes are integrated. It is effective to adopt the method of doing.

【０００７】ところが、ブリッジ部材Ｂの両端部は前述
したようにパイプ材Ａ，Ａの曲面に合わせてカットされ
ているため、左右のサイドコンプリートが一体化してパ
イプ材Ａ，Ａの間隔が固定されてしまうと、ブリッジ部
材Ｂをパイプ材Ａ，Ａ間に仮止めすることができなくな
る。仮に、パイプ材Ａ，Ａとブリッジ部材Ｂとの間隙を
大きくして仮止めを可能とさせても、両部材Ａ，Ｂの溶
着時に上記間隙に肉盛りを施す必要が生じ、溶着作業が
困難になるとともに接合部の強度低下につながる恐れが
ある。However, since both ends of the bridge member B are cut in accordance with the curved surfaces of the pipe materials A and A as described above, the left and right side completes are integrated and the distance between the pipe materials A and A is fixed. If this happens, the bridge member B cannot be temporarily fixed between the pipe members A, A. Even if the gaps between the pipe members A and A and the bridge member B are enlarged to allow temporary fixing, it is necessary to build up the gaps when the members A and B are welded, and the welding work is difficult. As a result, the strength of the joint may decrease.

【０００８】本発明は、これらの問題点を解決するため
になされたもので、車体フレームを構成する左右一対の
丸パイプ材間に架設されるブリッジ部材を、車体フレー
ムの組み上がり後に後付け可能とさせ、車体フレーム組
立用の治具をコストダウンするとともに、車体フレーム
組立時におけるブリッジ部材の仮止め作業を容易にする
ことができる自動二輪車の車体フレームを提供すること
を目的とする。The present invention has been made in order to solve these problems, and it is possible to retrofit a bridge member erected between a pair of left and right round pipe members constituting a vehicle body frame after the vehicle body frame is assembled. An object of the present invention is to provide a vehicle body frame of a motorcycle that can reduce the cost of a jig for assembling the vehicle body frame and facilitate the temporary fixing work of the bridge member at the time of assembling the vehicle body frame.

【０００９】[0009]

【課題を解決するための手段】上記目的を達成するた
め、本発明に係る自動二輪車の車体フレームは、左右一
対の丸パイプ材間にブリッジ部材を架設した自動二輪車
の車体フレームにおいて、上記ブリッジ部材は、その両
端部が上記両丸パイプ材の一辺と軸心線との間にかけて
丸パイプ材に突き当てられ、この突き当て部が溶着され
て丸パイプ材に固定されたことを特徴とするものであ
る。In order to achieve the above object, a vehicle body frame of a motorcycle according to the present invention is a vehicle body frame of a motorcycle in which a bridge member is installed between a pair of left and right round pipe members. Is characterized in that both ends thereof are abutted against the round pipe material between one side of the both round pipe materials and the axial center line, and the abutting portions are welded and fixed to the round pipe material. Is.

【００１０】[0010]

【作用】このようにすることにより、左右の丸パイプ材
間の間隔が固定されていてもブリッジ部材を容易に丸パ
イプ材間に仮止めすることができるようになり、組み上
がった車体フレームにブリッジ部材を後付けできる。By doing so, the bridge member can be easily temporarily fixed between the round pipe members even if the space between the left and right round pipe members is fixed, and the bridge member can be easily attached to the assembled body frame. The bridge member can be retrofitted.

【００１１】[0011]

【実施例】以下、本発明の実施例について図面を参照し
ながら説明する。Embodiments of the present invention will be described below with reference to the drawings.

【００１２】図１は、本発明が適用された自動二輪車の
車体フレーム斜視図である。この車体フレーム１は丸パ
イプ材によって構成された一般的なダブレクレードル型
のものであり、フロントフォークが支持されるヘッドパ
イプ２から後方に延びて下方に湾曲する左右一対のトッ
プチューブ３，３と、同じくヘッドパイプ２から下方へ
延びて後方に湾曲する左右一対のダウンチューブ４，４
と、上記トップチューブ３，３の湾曲部から後方に延び
る左右一対のシートレール５，５と、これら左右一対の
丸パイプ材３，３、４，４、５，５間に架設されるブリ
ッジ部材６，７，８，９，１０，１１などから成り立っ
ている。FIG. 1 is a perspective view of a vehicle body frame of a motorcycle to which the present invention is applied. The body frame 1 is of a general double cradle type made of a round pipe material, and has a pair of left and right top tubes 3 and 3 extending rearward from a head pipe 2 supporting a front fork and curving downward. And a pair of left and right down tubes 4, 4 that also extend downward from the head pipe 2 and curve backward.
And a pair of left and right seat rails 5, 5 extending rearward from the curved portions of the top tubes 3, 3 and a bridge member provided between the pair of left and right round pipe members 3, 3, 4, 4, 5, 5. It consists of 6, 7, 8, 9, 10, 11 and so on.

【００１３】上記トップチューブ３，３の後端部はダウ
ンチューブ４，４上に溶着され、ダウンチューブ４，４
の後端部はシートレール５，５に溶着されてシートレー
ル５，５を支持している。なお、１２，１２は補強部材
であり、１３，１３は後部乗員用ピリオンフットレスト
の取付ステーである。The rear end portions of the top tubes 3 and 3 are welded onto the down tubes 4 and 4, and the down tubes 4 and 4 are
The rear end portion is welded to the seat rails 5 and 5 to support the seat rails 5 and 5. In addition, 12 and 12 are reinforcing members, and 13 and 13 are mounting stays for the rear occupant pillion footrest.

【００１４】図２（ａ），（ｂ）は、本発明の第１実施
例を示しており、（ａ）は前記ブリッジ部材６，７とト
ップチューブ３，３との取着状態を示す側面図、（ｂ）
は（ａ）のIIｂ−IIｂ線に沿う断面図である。2 (a) and 2 (b) show a first embodiment of the present invention, and FIG. 2 (a) is a side view showing a state in which the bridge members 6 and 7 and the top tubes 3 and 3 are attached. Figure, (b)
FIG. 7A is a sectional view taken along line IIb-IIb of FIG.

【００１５】ブリッジ部材６，７は、例えば丸パイプ材
を潰して長円形断面を持たせたもので、この長円形断面
の長軸がトップチューブ３，３の長手方向に沿うように
トップチューブ３，３間に架設されている。The bridge members 6 and 7 are, for example, crushed round pipe materials to have an oval cross section, and the top tube 3 has its major axis along the longitudinal direction of the top tubes 3 and 3. , 3 has been installed.

【００１６】ブリッジ部材６，７は、その両端部がトッ
プチューブ３，３の一辺３ａと軸心線３ｂとの間にかけ
てトップチューブ３，３に突き当てられており、この突
き当て部１４が全周にわたって溶着され、トップチュー
ブ３，３に固定されている。本実施例において、上記一
辺３ａはトップチューブ３，３の上側の輪郭線となって
いるが、下側の輪郭線としても良い。Both ends of the bridge members 6 and 7 are abutted against the top tubes 3 and 3 between one side 3a of the top tubes 3 and 3 and the axial center line 3b. It is welded over the circumference and fixed to the top tubes 3, 3. In the present embodiment, the one side 3a is the upper contour line of the top tubes 3 and 3, but may be the lower contour line.

【００１７】このようにした場合、ブリッジ部材６，７
は左右のトップチューブ３，３の間隔が固定されていて
も、一辺３ａ側からトップチューブ３，３間に容易に仮
止めすることができるため、車体フレーム１が組み上げ
られてからブリッジ部材６，７を後付けすることが可能
となる。In this case, the bridge members 6, 7
Even if the space between the left and right top tubes 3 and 3 is fixed, it is possible to easily temporarily provisionally fix the top tubes 3 and 3 from the side 3a. 7 can be retrofitted.

【００１８】したがって、車体フレーム１組立用の治具
からブリッジ部材６，７を仮止めする構造を省略するこ
とができ、治具を大幅にコストダウンさせることができ
る。また、車体フレーム１を上記治具にて組み立てる際
に全てのブリッジ部材６，７，８，９，１０，１１を同
時に治具に仮止めする必要がなくなるため、仮止め作業
が容易になる。Therefore, the structure for temporarily fixing the bridge members 6, 7 from the jig for assembling the vehicle body frame 1 can be omitted, and the cost of the jig can be significantly reduced. Further, when the vehicle body frame 1 is assembled with the above jig, it is not necessary to temporarily fix all the bridge members 6, 7, 8, 9, 10, 11 to the jig at the same time, which facilitates the temporary fixing work.

【００１９】図３（ａ），（ｂ）は本発明の第２実施例
を示すもので、ブリッジ部材６，７は丸パイプ材の両端
部のみを潰した形状とされている。また、図４（ａ），
（ｂ）は本発明の第３実施例で、ブリッジ部材６，７は
角パイプ材とされている。図２〜図４に示すようなブリ
ッジ部材形状を採用することにより、溶着部の直線区間
が長くなるため、ロボットによる自動溶着が行い易くな
り、車体フレーム１の生産性を向上させることができ
る。3 (a) and 3 (b) show a second embodiment of the present invention, in which the bridge members 6 and 7 are formed by crushing only both ends of a round pipe material. In addition, FIG.
(B) is a third embodiment of the present invention, in which the bridge members 6, 7 are square pipe materials. By adopting the bridge member shape as shown in FIGS. 2 to 4, since the straight section of the welded portion becomes long, automatic welding by the robot is facilitated and the productivity of the body frame 1 can be improved.

【００２０】なお、本発明はブリッジ部材６，７に限ら
ず、他のブリッジ部材８，９，１０，１１に適用しても
良い。The present invention is not limited to the bridge members 6 and 7, but may be applied to other bridge members 8, 9, 10, and 11.

【００２１】[0021]

【発明の効果】以上説明したように、本発明に係る自動
二輪車の車体フレームは、左右一対の丸パイプ材間にブ
リッジ部材を架設した自動二輪車の車体フレームにおい
て、上記ブリッジ部材は、その両端部が上記両丸パイプ
材の一辺と軸心線との間にかけて丸パイプ材に突き当て
られ、この突き当て部が溶着されて丸パイプ材に固定さ
れたことを特徴とするものである。As described above, the vehicle body frame of the motorcycle according to the present invention is a vehicle body frame of a motorcycle in which a bridge member is installed between a pair of left and right round pipe members, and the bridge member has both ends thereof. Is abutted against the round pipe material between one side of the both round pipe materials and the axis line, and the abutting portion is welded and fixed to the round pipe material.

【００２２】したがって、左右の丸パイプ材間の間隔が
固定されていてもブリッジ部材を容易に丸パイプ材間に
仮止め可能であり、組み上がった車体フレームにブリッ
ジ部材を後付けすることができる。このため、車体フレ
ーム組立用の治具からブリッジ部材仮止め用の構造を省
くことができ、治具の大幅なコストダウンを実現できる
とともに、車体フレーム組立時におけるブリッジ部材の
仮止め作業が容易となる。Therefore, even if the distance between the left and right round pipe members is fixed, the bridge member can be easily temporarily fixed between the round pipe members, and the bridge member can be retrofitted to the assembled body frame. Therefore, the structure for temporarily fixing the bridge member can be omitted from the jig for assembling the vehicle body frame, the jig cost can be significantly reduced, and the temporary fixing work of the bridge member at the time of assembling the vehicle body frame can be facilitated. Become.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明が適用された自動二輪車の車体フレーム
斜視図。FIG. 1 is a perspective view of a vehicle body frame of a motorcycle to which the present invention is applied.

【図２】本発明の第１実施例を示すもので、（ａ）はブ
リッジ部材とトップチューブとの取着状態を示す側面
図、（ｂ）は（ａ）のIIｂ−IIｂ線に沿う断面図。2A and 2B show a first embodiment of the present invention, in which FIG. 2A is a side view showing an attachment state of a bridge member and a top tube, and FIG. 2B is a sectional view taken along line IIb-IIb in FIG. 2A. Fig.

【図３】（ａ）は本発明の第２実施例を示す側面図、
（ｂ）は（ａ）のIII ｂ−III ｂ線に沿う断面図。FIG. 3 (a) is a side view showing a second embodiment of the present invention,
(B) is sectional drawing which follows the IIIb-IIIb line of (a).

【図４】（ａ）は本発明の第３実施例を示す側面図、
（ｂ）は（ａ）のIVｂ−IVｂ線に沿う断面図。FIG. 4A is a side view showing a third embodiment of the present invention,
(B) is sectional drawing which follows the IVb-IVb line of (a).

【図５】（ａ）は従来の技術を示す側面図、（ｂ）は
（ａ）のＶｂ−Ｖｂ線に沿う断面図。5A is a side view showing a conventional technique, and FIG. 5B is a sectional view taken along line Vb-Vb of FIG.

【符号の説明】[Explanation of symbols]

１ 車体フレーム ３ トップチューブ ３ａ 一辺 ３ｂ 軸心線 ４ ダウンチューブ ５ シートレール ６，７ ブリッジ部材 １４ 突き当て部 1 Body frame 3 Top tube 3a One side 3b Axis center line 4 Down tube 5 Seat rail 6,7 Bridge member 14 Abutting part

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 左右一対の丸パイプ材間にブリッジ部材
を架設した自動二輪車の車体フレームにおいて、上記ブ
リッジ部材は、その両端部が上記両丸パイプ材の一辺と
軸心線との間にかけて丸パイプ材に突き当てられ、この
突き当て部が溶着されて丸パイプ材に固定されたことを
特徴とする自動二輪車の車体フレーム。1. In a vehicle body frame of a motorcycle, wherein a bridge member is installed between a pair of left and right round pipe members, the bridge member has a round end extending between one side of the two round pipe members and an axial center line. A body frame for a motorcycle, which is abutted against a pipe material, and the abutting portion is welded and fixed to a round pipe material.
JP06717292A 1992-03-25 1992-03-25 Motorcycle body frame Expired - Fee Related JP3194288B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP06717292A JP3194288B2 (en) 1992-03-25 1992-03-25 Motorcycle body frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP06717292A JP3194288B2 (en) 1992-03-25 1992-03-25 Motorcycle body frame

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JPH05270471A true JPH05270471A (en) 1993-10-19
JP3194288B2 JP3194288B2 (en) 2001-07-30

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JP06717292A Expired - Fee Related JP3194288B2 (en) 1992-03-25 1992-03-25 Motorcycle body frame

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Publication number Priority date Publication date Assignee Title
US7114588B2 (en) 2003-07-08 2006-10-03 Honda Motor Co., Ltd. Vehicle body frame structure of two-wheeler

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JP3194288B2 (en) 2001-07-30

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